html,
body {
  height: 100%;
}
ul,
li {
  list-style: none;
  padding: 0;
  margin: 0;
}
.lt-layout {
  width: 100%;
  height: 100%;
  max-width: 640px;
  min-width: 320px;
  background-color: #fff;
  margin: 0 auto;
  position: relative;
  padding: 45px 0 55px 0;
}
.lt-layout .lt-header {
  height: 45px;
  width: 100%;
  background-color: #006699;
  position: absolute;
  left: 0;
  top: 0;
  padding: 0 45px;
}
.lt-layout .lt-header h4 {
  color: #fff;
  text-align: center;
  line-height: 45px;
  width: 100%;
  margin: 0;
  font-weight: 400;
  font-size: 20px;
}
.lt-layout .lt-header a {
  position: absolute;
  left: 0;
  top: 0;
  width: 45px;
  height: 45px;
  display: block;
  color: #fff;
  text-align: center;
  line-height: 45px;
  font-weight: 700;
}
.lt-layout .lt-header .search {
  left: auto;
  right: 0;
}
.lt-layout .lt-main {
  position: relative;
  width: 100%;
  height: 100%;
}
.lt-layout .lt-footer {
  height: 55px;
  width: 100%;
  background-color: #006699;
  position: absolute;
  left: 0;
  bottom: 0;
}
.lt-layout .lt-footer ul {
  width: 100%;
}
.lt-layout .lt-footer ul li {
  width: 25%;
  float: left;
}
.lt-layout .lt-footer ul li a {
  width: 100%;
  display: block;
  color: #fff;
  text-align: center;
  font-size: 14px;
  margin-top: 5px;
}
.lt-layout .lt-footer ul li a span {
  display: block;
  font-weight: 700;
}
.lt-layout .lt-footer ul .current a {
  color: orange;
}
